Painters' Colours, Oils, and Varnishes: A Practical ManualC. Griffin, limited, 1901 - 504 pagina's |
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Pagina 31
... added , and more carbonic acid ; în about an hour this second lot of litharge will be converted into white lead , then more litharge is added , carbonic acid being mean- while sent in ; these additions of litharge are continued hourly ...
... added , and more carbonic acid ; în about an hour this second lot of litharge will be converted into white lead , then more litharge is added , carbonic acid being mean- while sent in ; these additions of litharge are continued hourly ...
Pagina 36
... added , and the grinding resumed for a few hours ; then it is again allowed to stand all night and the clear liquid again drawn off . These operations are continued until the effluent water is tasteless . The white lead , after being ...
... added , and the grinding resumed for a few hours ; then it is again allowed to stand all night and the clear liquid again drawn off . These operations are continued until the effluent water is tasteless . The white lead , after being ...
Pagina 38
... added ; this precipitates the white lead , which is finished in the usual way . A modified process was described in a later patent . One part of acetic acid of specific gravity 1.045 is mixed with 12 times its weight of water , and the ...
... added ; this precipitates the white lead , which is finished in the usual way . A modified process was described in a later patent . One part of acetic acid of specific gravity 1.045 is mixed with 12 times its weight of water , and the ...
Pagina 46
... added , when a white precipitate of alumina may be obtained indicating the presence of china clay ; this is filtered off , and to the filtrate is added ammonium carbonate , which will precipitate any calcium that may have been added ...
... added , when a white precipitate of alumina may be obtained indicating the presence of china clay ; this is filtered off , and to the filtrate is added ammonium carbonate , which will precipitate any calcium that may have been added ...
Pagina 47
... added more dilute sulphuric acid , which will precipitate the lead and barium ; this precipitate can be filtered off , the two can be separated by boil- ing with hydrochloric acid , which dissolves the lead sulphate but not the barium ...
... added more dilute sulphuric acid , which will precipitate the lead and barium ; this precipitate can be filtered off , the two can be separated by boil- ing with hydrochloric acid , which dissolves the lead sulphate but not the barium ...
Overige edities - Alles bekijken
Painters' Colours, Oils, and Varnishes: a Practical Manual George Henry Hurst Volledige weergave - 1892 |
Painters' Colours, Oils, and Varnishes: a Practical Manual George Henry Hurst Volledige weergave - 1892 |
Painters' Colours, Oils, and Varnishes: A Practical Manual George Henry Hurst Geen voorbeeld beschikbaar - 2016 |
Veelvoorkomende woorden en zinsdelen
acetate of lead acetic acid added alcohol alkali alum alumina ammonia analysis ASSAY barium barium chloride barytes bichromate body boiling calcining calcium carbonic acid caustic soda cent chamber CHARLES GRIFFIN china clay chloride chromate chrome chrome-yellow coal-tar cobalt colouring matters colouring power composition contain copal copper covering power dissolved distillation dried driers drying dyestuffs Engineer EXETER STREET ferric filter flue furnace gallons green grinding heat hydrochloric acid insoluble iron lake lead acetate linseed oil liquor litharge manganese mass material method mill mixed mixture obtained ochre orange oxide paint pale patent petroleum pigment placed potash potassium precipitate prepared properties proportion Prussian blue residue resin rosin salt sample sandarac shade silica small quantities sodium soluble solution specific gravity spirit steam sulphide sulphuric acid tanks temperature tint turpentine ultramarine usually varies variety varnish washed white lead yellow zinc white